Delivering the multiagent technology to
end-users through the web
D. Mitrović1, M. Ivanović1, C. Bădică2
1University of Novi Sad, Serbia
2University of Craiova, Romania
Agenda
 Introduction
 Overview of Radigost
 Case-studies
 Conclusions
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HTML5
 HTML5 standard has brought significant benefits to both
software developers and end-users
- Software developers benefit from the cross-platform
support as the same code can be re-used in many
different environments
- End-users are given the access to online applications
in a variety of ways, without the significant loss of
functionalities
 Radigost: interoperable, purely web-based multiagent
platform, built using modern HTML5 technologies
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HTML5-related technologies in Radigost
 JavaScript: lingua franca of the web
 Web workers: native threads in JavaScript
- Provide agents with its own thread of execution
- Include an efficient messaging infrastructure
 WebSockets: full-duplex communications channels over a
single TCP connection
- Provide standard way for the push communication
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Agenda
 Introduction
 Overview of Radigost
 Case-studies
 Conclusions
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Radigost
 Radigost is a purely web-based multiagent platform, built
using modern HTML5 technologies
 Radigost agents and parts of the system itself are
implemented in JavaScript and executed inside the client's
web browser
 The system is standards-compliant and interoperable,
capable of interacting with third-party multiagent solutions
 Its runtime performance is comparable to that of a desktopbased multiagent implementation
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Main functionalities of Radigost
 Radigost provides the necessary infrastructure for the
deployment, execution and interaction of its agents
 Its core functionalities include:
- Agent life-cycle management
- A communication infrastructure
- A yellow-pages service
 Additionally, Radigost incorporates several advanced features:
- Interoperability sub-system
- Support for agent state persistence
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Architecture overview – core components
Provides a set of API s
through which most of
the system’s
functionality is exposed
Offers server-side
persistent storage
for agent state
Yellow-pages service
- maintains list of
registered agents
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Agenda
 Introduction
 Overview of Radigost
 Case-studies
 Conclusions
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Performance evaluation
Generates a random, 64character long message
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Employing agent mobility
 The second case-study includes a mobile Radigost agent
 The user loads the web page on its smartphone device,
takes a photo, and chooses a target device (e.g. Smart TV)
 The mobile agent then takes the
photo, moves to the target device,
and displays the photo there
 The case-study demonstrates the
benefits of using Radigost and
capabilities of the agent
technology
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Agenda
 Introduction
 Overview of Radigost
 Case-studies
 Conclusions
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Conclusions
 HTML5 has transformed the web into a serious application
development platform
 Multiagent systems based on Radigost have several
advantages over classic desktop applications:
- No prior installation or configuration steps
- Updates are available instantly to all end-users
- Support on many hardware and software platforms,
including desktop computers, smartphone and tablet
devices, and Smart TVs
 Future work on the platform will be focused on a number of
areas: security issues, support for reasoning agents, etc.
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